CAB-O-SIL M-5

CAS NUMBER: 112945-52-5

MOLECULAR FORMULA: SiO2

MOLECULAR WEIGHT: 60.08

DESCRIPTION:

CAB-O-SIL M-5 untreated fumed silica is a synthetic, amorphous, colloidal silicon dioxide that is generally regarded as unique in industry because of its unusual particle characteristics. 
CAB-O-SIL M-5’s extremely small particle size, its enormous surface area, its high purity, and its chain-forming tendencies set it apart in a class of its own. 
CAB-O-SIL M-5 is a light, fluffy powder that is white in appearance and is used in many applications and a variety of industries.
CAB-O-SIL M-5 is is a medium surface fumed silica used in adhesives. 

CAB-O-SIL M-5 provides thickening, thixotrophic (shear thinning), and anti-settling behavior in liquid systems.
To perform one or more important functions in Cabosil coatings, CAB-O-SIL M-5 is a versatile and effective combusted silica used. 
CAB-O-SIL M-5 is formed as a result of hydrolysis in an oxygen flame at approximately 1800C. 
This process is high purity and forms a fine particle size colloidal product.
Uncommon surface chemistry of fumed silica in coating systems plays an important role.

About 40% of the surface of untreated fumed silica is hydroxyl groups.
CAB-O-SIL M-5 is covered with water and therefore its surface is hydrophilic. 
Hydroxyl groups of surface chemistry provides its distinctive feature.
When fumed silica is added to the liquid mixture, the hydroxyl on the neighboring silica particles forms hydrogen bonds with groups. 
Formation of merging hydrogen bonds CAB-O-SIL M-5 provides rheological control of silica in liquid systems.

CAB-O-SIL M-5 is a untreated medium surface fumed silica that provides thickening, thixotrophic, and anti-settling behavior in liquid systems. 
CAB-O-SIL M-5 is most efficient in non-polar to medium polarity systems, and provides increases in hardness, tensile strength and elongation. 
CAB-O-SIL M-5 can be used for reinforcement of silicone and organic rubbers. 
CAB-O-SIL M-5 is well suited for use in coatings, adhesives, and other liquid systems.

CAB-O-SIL M-5 is a medium surface fumed silica which imparts significant increase in viscosity in liquid systems, free flow of powders and reinforcement of silicone and organic rubbers.
CAB-O-SIL M-5 is medium surface fumed silica. 
CAB-O-SIL M-5 is widely used to provide thickening, thixotrophic (shear thinning), and anti-settling behavior in liquid systems. 
CAB-O-SIL M-5 is most efficient in non-polar to medium polarity systems. Offers an excellent balance of thickening efficiency and dispersibility. Exhibits high purity, aggregated structure, submicron particle size, low bulk density and hydrophilic surface chemistry. 
When blended into sticky and poorly flowing powder systems, CAB-O-SIL M-5 reduces the angle of repose and improves powder flow. 

CAB-O-SIL M-5 can be used as a rheology control additive in all resin systems, when hydrophobicity and shelf stability are of only moderate concern.
CAB-O-SIL M-5 untreated fumed silica is a synthetic, amorphous, colloidal silicon dioxide that is generally regarded as unique in industry because of its unusual particle characteristics.
CAB-O-SIL M-5 (pharmaceutical grade) fumed silica is an excipient of extremely high purity used as a multi-functional additive in the pharmaceutical and nutraceutical industries.
CAB-O-SIL M-5 is a higher bulk density fumed silica offering lower freight and storage costs, easier handling while retaining all the performance advantages of CAB-O-SIL M-5P.

CAB-O-SIL M-5’s glidant and anti-static properties help improve the flow properties of powders and reduce friction and static charges in high speed tablet and capsule machines.
Additionally, CAB-O-SIL M-5 helps prevent bridging
CAB-O-SIL M-5 is compatible with many pharmaceutical ingredients. 
CAB-O-SIL M-5 adheres readily to hydrophilic ingredients, functioning as an excellent glidant.
CAB-O-SIL M-5 fumed silica in a tablet formulation can decrease the coefficient of variation of active pharmaceutical ingredient (API) content in a batch of tablets. 

Very low variations in drug content were observed with APAP tablet formulations containing 0.5% CAB-O-SIL M-5P fumed silica after blending for 15 minutes. ,
Tablets without fumed silica mixed for 15 minutes exhibited a coefficient of variation of 6%, which is 12 times higher than the variation seen in tablets that did contain CAB-O-SIL fumed silica.
CAB-O-SIL M-5 was added to ibuprofen tablets in order to test its influence on tablet hardness. 
CAB-O-SIL M-5 increases the viscosity of adhesives and sealants, provides thixotropy, improves extrusion properties during application, prevents sagging during curing (drying) and improves adhesive and reinforcing properties. 
CAB-O-SIL M-5 extends the product’s shelf life and maintains its characteristics during storage.

Due to its excellent hydrophobicity, CAB-O-SIL M-5 offers great storage stability and an extended product shelf life. 
CAB-O-SIL M-5 is an excellent choice for use in reactive/moisture curing systems such as isocyanate or silane. 
In addition to being moisture resistant, CAB-O-SIL M-5 provides excellent corrosion resistance while remaining process-friendly
CAB-O-SIL M-5 is used for reinforcement of silicone compounds and organic polymers. 
Cabot fumed silica strengthens rubber, allowing it to be stretched and deformed without breaking. 

CAB-O-SIL M-5 increases ink viscosity, provides thixotropy, prevents its absorption in very porous surfaces, prevents sagging and curing during application and also prevents the settling in heavy loads, such as for pigments.
CAB-O-SIL M-5 increases polyester/gelcoat resin viscosity, provides thixotropy and prevents sagging primarily during application on vertical surfaces. 
CAB-O-SIL M-5 also prevents load sedimentation in formulations with heavy elements or in large concentrations.
CAB-O-SIL M-5 promotes the free-flow of the formulation’s powdered components and increases tablets’ mechanical resistance through direct compression. 
This increases the productivity of the pharmaceutical industry, thus creating more accurate dosages and reducing loss rates from tablet breakage during pressing.

In liquid systems (syrups, etc.), CAB-O-SIL M-5 improves the uniform distribution of the active ingredients, enhances system viscosity and prevents the sedimentation of formulation components.
CAB-O-SIL M-5 is the most versatile fumed silica for the cosmetics and personal care sector, including hair products, antiperspirants, nail polishes, make-up, creams, lotions, lipsticks, etc. 
This versatility is due to its high purity and amorphous structure which provides excellent performance in liquid and powder systems in several applications.
Among the CAB-O-SIL M-5, there are two different families: hydrophilic silicas (with a surface area ranging from 90 to 380 m²/g) and hydrophobic silicas, such as the TS 610, TS 720 and TS 530.
CAB-O-SIL M-5 is an excellent agent for keeping oil/water emulsions stable. 

Due to its high water polarity, optimal performance is ideally achieved if you first add CAB-O-SIL fumed silica in the oily phase.
CAB-O-SIL M-5 fumed silica provides excellent flow for fire-fighting equipment by preventing any agglomeration, even after long storage time.
CAB-O-SIL M-5 is widely used to provide thickening, thixotrophic (shear-thinning), and anti-settling behavior in liquid systems. 
CAB-O-SIL M-5 is most efficient in non-polar to medium polarity systems. For more polar systems, treated fumed silicas are more effective. 
CAB-O-SIL M-5 offers the best balance of thickening efficiency and dispersibility.

CAB-O-SIL M-5 can be used for reinforcement of silicone rubber and can be used to reinforce organic rubbers. 
CAB-O-SIL M-5 imparts good increase in hardness, tensile, and elongation.
CAB-O-SIL M-5 is a versatile filler which has won favor with many art conservators in Europe; we are pleased to be able to offer it in the US. 
CAB-O-SIL M-5 is particularly versatile.

CAB-O-SIL M-5 untreated silica is a synthetic, amorphous, colloidal silicone dioxide that is generally regarded as unique in industry because of its unusual particle characteristics. 
CAB-O-SIL M-5’s extremely small particle size, its enormous surface area, its high purity, and its chain-forming tendencies set it apart in a class of its own. 
CAB-O-SIL M-5 is a light, fluffy powder that is white in appearance and is used with urethane's and epoxy resin and RTV Silicone's.
Adding small amounts of CAB-O-SIL M-5 to the resin will thicken the materials to make a brush on material or trowel-able casting application.

PROPERTIES:

-B.E.T. Surface Area: 200 m2/g
-pH (4% aqueous slurry): 3.7–4.3
-325 Mesh Residue (44 microns): 0.02% max.
-Bulk Density: 3.0 lb/ft3 max.
-Loss on Heating: < 1.5% max.
-Loss on Ignition: (at 1000ºC) < 2 wt. %
-Specific Gravity: 2.2 g/cm3
-Wt. per gallon: 18.3 lb
-Refractive Index: 1.46
-X-ray Form: Amorphous
-Assay (% SiO2): > 99.8
-Oil Adsorption: ~350 g/100 g oil
-Average Particle (Aggregate) Length: 0.2–0.3 microns

FUNCTION:

-Rheology Control
-Reinforcement
-Free Flow
-Suspension
-Adsorbant

APPLICATION:

-Adhesives & Sealants
-Coatings
-Composites
-Cosmetics
-Foods
-Inks
-Pharmaceuticals

FEATURES:

CAB-O-SIL M-5 has been successfully used as a special additive material in many different industries. 
Increases the "fluidity" and "anti-caking" properties of powdered materials.
CAB-O-SIL M-5 keeps the dispersed solids in suspension and prevents them from collapsing.
CAB-O-SIL M-5 can make liquids gel-like and if the refractive indices are similar, gels become completely transparent.
CAB-O-SIL M-5 prevents the paint from flowing and dripping from the roller.

PURITY:

CAB-O-SIL M-5 is produced through a pyrogenic process that results in one of the purest commercially available forms of synthetic amorphous silica (99.8% pure). 
In contrast, the production of precipitated silica requires the addition of a mineral acid to an alkaline silicate solution, resulting in a lower purity product that contains higher moisture, sulfates and chloride impurities. 
These impurities can impact the product in significant ways, including:

-High sulfates and chloride content can affect the stability of some active ingredients. 
-Fumed silica has a much lower level of ionic chlorides than precipitated silica and very low to no ionic sulfate species as there are no sulfur containing species in the pyrogenic process.
-High levels of moisture can affect moisture-sensitive compounds. 
-Fumed silica has a lower level of moisture than precipitated silica.
 

-CAB-O-SIL M-5 as a die filling aid:

Uniform tablet weights and uniform doses of active ingredients are dependent on the ability of the powder mix to feed into the dies in a reproducible manner. 
Fumed silica can be added to the formulation in order to improve the flow properties of the material and to aid particle rearrangement within the die during the early stages of die filling and compression.

USES:

-Rheology Control for Coatings, Adhesive and other Liquid Systems:

CAB-O-SIL M-5 is widely used to provide thickening, thixotrophic (shearthinning), and anti-settling behavior in liquid systems. 
CAB-O-SIL M-5 is most efficient in non-polar to medium polarity systems. 
For more polar systems, treated fumed silicas are more ffective. 
CAB-O-SIL M-5 offers the best balance of thickening efficiency and dispersibility.

-Free-flow of Powder Systems:

When blended into sticky and poorly flowing powder systems, M-5 reduces angle of repose and improves powder flow. 
During storage of powder systems, M-5 reduces caking and blocking.

-Reinforcement of Silicone and Organic Rubber:

CAB-O-SIL M-5 can be used for reinforcement of silicone rubber and can be used to reinforce organic rubbers. 
CAB-O-SIL M-5 imparts good increase in hardness, tensile and elongation.

SPECIFICATION:

-High purity
-Aggregated structure
-Submicron particle size
-Low bulk density
-Hydrophilic surface

CHEMICAL PROPERTIES:

-Melting point: 1610 °C(lit.)
-Boiling point: >100 °C(lit.)
-density: 2.6 g/mL at 25 °C(lit.)
-refractive index: n20/D 1.544(lit.)
-form: tablets (~0.5 g each)
-Exposure limits NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3

PROPERTIES:

-Color: White
-Density: 2.2 g/cm3 @ 20 °C (68 °F)
-pH: 3.6 - 4.5
-Relative Density: 2.2 at 20 °C 
-Solubility in Water: slightly soluble

STORAGE:

CAB-O-SIL M-5 in a dry and clean environment away from chemical vapor at ambient temperature should be stored. 
The moisture content in the package should be less than 1.0% by weight.

SYNONYM:
Silica
Quartz
Dioxosilane
7631-86-9
Diatomaceous earth
Silica gel
Cristobalite
Tridymite
Sand
Infusorial earth
14808-60-7
Silicic anhydride
KIESELGUHR
112945-52-5
Aerosil
Crystalline silica
112926-00-8
61790-53-2
Diatomaceous silica
Dicalite
Wessalon
Glass
Ludox
Nyacol
Zorbax sil
Silica, amorphous
Cab-O-sil
Christensenite
Crystoballite
Silicon(IV) oxid
60676-86-0
Siliceous earth
Synthetic amorphous silica
Amorphous silica
14464-46-1
Silica, colloidal
QUARTZ (SIO2)
Chalcedony
Diatomite
Agate
Silica vitreous
Cab-o-sil M-5
colloidal silica
Fused silica
Quartz glass
Quartz sand
Silica slurry
Silicone dioxide
Colloidal silicon dioxide
Siliceous earth, purified
91053-39-3
Min-U-Sil
Silicon dioxide (amorphous)
15468-32-3
Silicon dioxide, fumed
Siliziumdioxid
SILICA, VITREOUS
68855-54-9
Kieselsaeureanhydrid
Silica Gel, 40-63 Micron Particles
CHEBI:30563
SiO2
(SiO2)n
43-63C
ETJ7Z6XBU4
Silicon dioxide, colloidal
15723-40-7
Silicon Dioxide, Amorphous
ENT 25,550
[SiO2]
Silica, crystalline - fused
Silicagel
Silicon dioxide, amorphous gel
13778-37-5
13778-38-6
17679-64-0
Silicondioxide
Silica gel desiccant, indicating
Celite
Sand, Ottawa
Sand, Sea
silica gel desiccant
Calcined diatomite
MFCD00011232
MFCD00217788
Silica, mesostructured
Sillikolloid
Acticel
Aerosil 380
Amethyst
Aquafil
Carplex
Cataloid
Crysvarl
Extrusil
Flintshot
Nalcoag
Novaculite
Porasil
Santocel
Silikil
Silikill
Siloxid
Sipernat
Superfloss
Vulkasil
Cherts
Neosil
Neosyl
Snowit
Aerosil-degussa
Imsil
Metacristobalite
Zipax
Quartz silica
alpha-Quartz
Fossil flour
Fumed silica
Quartz dust
Rock crystal
Rose quartz
Silica dust
Silica glass
White carbon
Chromosorb P
Silica particles
Tiger-eye
Vulkasil S
Celite superfloss
Cristobalite dust
Snowtex O
Corasil II
Silver bond B
Cab-O-sperse
alpha-Cristobalite
alpha-Crystobalite
Tokusil TPLM
Dri-Die
Gold bond R
Cabosil st-1
Manosil vn 3
Sil-Co-Sil
Ultrasil VH 3
Ultrasil VN 3
Aerosil bs-50
Aerosil K 7
Cabosil N 5
Carplex 30
Carplex 80
Pigment White 27
Siderite (SiO2)
Snowtex 30
Syton 2X
Tridymite 118
Zeofree 80
Cab-O-grip II
Silicon(IV) oxide, amorphous
Tridimite 
Amorphous silica gel
HI-Sil
Glass wool, for laboratory use
Positive sol 232
Aerogel 200
Aerosil 300
Amorphous silica dust
Ludox hs 40
Silanox 101
Silica (SiO2)
Vitasil 220
Positive sol 130M
Siliceous earth, purified (NF)
Siliceous earth, purified [NF]
Silicon Oxide Hollow Nanospheres
Aerosil A 300
Aerosil E 300
Aerosil M-300
Cristobalite (SiO2)
Nyacol 830
Sibelite M 3000
Sibelite M 4000
Sibelite M 6000
Quazo puro
Caswell No. 734A
Nalfloc N 1050
Quso 51
Sicron F 300
Sikron F 100
Spectrosil
Accusand
Coesite
Fuselex
Nalcast
Nyacol 1430
Optocil
Quartzine
Quarzsand
Rancosil
Suprasil
Tridimite
Silica, amorphous fused
Siltex
Vitreous quartz
Vitreous silica
Tridymite dust
W 12 (Filler)
beta-Quartz
Fused quartz
MIN-U-sil alpha quartz
Quartz-beta
Quso G 30
Amorphous quartz
Dri-Die insecticide 67
Nalco 1050
Quazo puro
Silica, amorphous, fumed
Vitrified silica
MFCD00163736
Pyrogenic colloidal silica
Silica gel, spherical, 60 angstroms
Hydrophobic silica 2482
Silica, fused
Suprasil W
Vitreosil IR
Borsil P